Fix some issues reported by lintian

Fix some issues reported by lintian

• Trim trailing whitespace. (trailing-whitespace)
• Transition to automatic debug package (from: libapr1-dbg). (debian-control-has-obsolete-dbg-package)
• Use secure URI in Homepage field. (homepage-field-uses-insecure-uri)
• Bump debhelper from old 11 to 12. (package-uses-old-debhelper-compat-version)
• Set debhelper-compat version in Build-Depends. (uses-debhelper-compat-file)

This merge proposal was created automatically by the Janitor bot.

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The bot will automatically update the merge proposal to resolve merge conflicts or close the merge proposal when all changes are applied through other means (e.g. cherry-picks). Updates may take several hours to propagate.

Build and test logs for this branch can be found at https://janitor.debian.net/lintian-fixes/pkg/apr/0ec143aa-69b0-4579-83f1-b56cb1cde547.

Debdiff

These changes affect the binary packages:

[The following lists of changes regard files as different if they have different names, permissions or owners.]

Files in second set of .debs but not in first

-rw-r--r--  root/root   /usr/lib/debug/.build-id/a0/5a742a00c0968dbc48250b69a46828667cf9c3.debug
lrwxrwxrwx  root/root   /usr/share/doc/libapr1-dbgsym -> libapr1

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/96/ba09540069c5f08cbb307de1176089d958612c.debug
-rw-r--r--  root/root   /usr/share/doc/libapr1-dbg/NOTICE
-rw-r--r--  root/root   /usr/share/doc/libapr1-dbg/changelog.Debian.gz
-rw-r--r--  root/root   /usr/share/doc/libapr1-dbg/changelog.gz
-rw-r--r--  root/root   /usr/share/doc/libapr1-dbg/copyright

Control files of package libapr1: lines which differ (wdiff format)

• Homepage: http​://apr.apache.org/ https​://apr.apache.org/

Control files of package libapr1-dev: lines which differ (wdiff format)

• Homepage: http​://apr.apache.org/ https​://apr.apache.org/

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